The Model 640XL is a general purpose indicator which provides simple, yet accurate and reliable weighing used on mixers, grain carts, livestock scales, feed bins, weigh carts and many more applications. 2″ Sunlight readable display: 6 digit, 14 segments, alphanumeric LCD display, with bright backlighting for low light applications. Rugged Construction: Seamless polycarbonate enclosure with sealed back panel protect product indicator from vibration, impact, moisture and dust. Unit of Measure: lb or kg. Includes Clicker transceiver kit.